Variations in Weight and Proximate Composition of Newly Hatched Octopus vulgaris (Cuvier 1797) Paralarvae

Survival and growth of juvenile octopi vary considerably. The objective of this research was to determine variations in weight, total lipids (TL), and total protein (TP) of newly hatched Octopus vulgaris paralarvae (0 days old) over the course of the spawning period. Newly hatched paralarvae dry wei...

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Detalles Bibliográficos
Autores: Rodrigues-dos-Santos-Domingues, Pedro Miguel, Sánchez-Conde, Francisco Javier, Iglesias-Estévez, José, Otero-Pinzas, Juan José, Pazos, Gema, Linares, Fátima
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/315458
Acceso en línea:http://hdl.handle.net/10261/315458
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Vigo
Acuicultura
Lipids
Octopus vulgaris
Paralarvae quality
Proteins
Proximal composition
Weight
Descripción
Sumario:Survival and growth of juvenile octopi vary considerably. The objective of this research was to determine variations in weight, total lipids (TL), and total protein (TP) of newly hatched Octopus vulgaris paralarvae (0 days old) over the course of the spawning period. Newly hatched paralarvae dry weight from three females decreased throughout the spawning period. Similarly, newly hatched paralarvae TL percent decreased consistently (p < 0.05) in two of them and remained similar (p > 0.05) for the third female. Contrary, TP% did not vary regardless of the female or the time of hatching throughout paralarvae spawning. In conclusion, we believe that paralarvae used in O. vulgaris culture should be collected during the first 10 days of spawning, as they are larger and have higher lipid content; this increases the chances of a successful paralarvae culture, which is the major bottleneck in the culture of this species.